TOOGOO(R) Portable Optical Wireless Mouse RF 2.4GHz USB Receiver 2.4GHz wireless transmission up to 10 meters operating distance. Built-In mouse memory, no recording is needed after battery replacement. With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. Intelligent connectivity, no need to code, plug-and play. Ergonomically designed, comfort grip. Many dormant class control and more power-saving hibernation connectionless. 800/1600dpi, cursor speed adjustable. With On/Off power switch. Low power comsumption. Low voltage alarm function. Micro-receiver. Decent and modern design. High quality. Ideal laptop companion for home and office use.